Question

所以我的Codeigniter还有另外一个问题，它仍然是同一个项目，只计算我数据库中的数据行。

我想要做的是在Controller中创建一个函数，然后在View中调用该函数。

所以这是我的原始代码：

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Dash_control extends CI_Controller {

    public function __construct()
       {
            parent::__construct();
            $this->load->database();
            $this->load->model('dash_model');
       }



    public function index()
    {
        $data['cashtotal']=$this->dash_model->totalCash();
        $data['approvedtocash']=$this->dash_model->cashapproved();
        $data['rejectedtocash']=$this->dash_model->cashrejected();

        $this->load->view('dashboard',$data);
    }

}

然后是我的观看代码：

<thead>
<tr>
<th>Bank Name</th>
<th>Total Transaction</th>
<th>Cash Approved</th>
<th>Cash Rejected</th>
</tr>
</thead>
<tbody>
<tr class="warning">
<td>Awesome Bank</td>
<td><?php echo $cashtotal; ?></td>
<td><?php echo $approvedtocash; ?></td>
<td><?php echo $rejectedtocash; ?></td>
</tr>
</tbody>

使用上面的代码，一切正常。直到我修改了下面的代码（使用与上面相同的视图文件）：

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Dash_control extends CI_Controller {

    public function __construct()
       {
            parent::__construct();
            $this->load->database();
            $this->load->model('dash_model');
       }



    public function index()
    {

        $this->load->view('dashboard');
    }

    public function anotherfunction()
    {
        $data['cashtotal']=$this->dash_model->totalCash();
        $data['approvedtocash']=$this->dash_model->cashapproved();
        $data['rejectedtocash']=$this->dash_model->cashrejected();

        $this->load->view('dashboard',$data);
    }

}

之后我在浏览器上收到此错误：

A PHP Error was encountered

Severity: Notice

Message: Undefined variable: cashtotal

Filename: views/dashboard.php

Line Number: 147

Backtrace:

File: C:\xampp\htdocs\application\views\dashboard.php
Line: 147
Function: _error_handler

File: C:\xampp\htdocs\application\controllers\dash_control.php
Line: 18
Function: view

File: C:\xampp\htdocs\index.php
Line: 292
Function: require_once

我做错了什么？有什么我想念的吗？所以我无法在我的控制器中创建多个功能？谢谢你。

更新

我按照萨蒂的指南行事。非常感谢！由于这是一个表，我想添加另一个函数，所以我把它添加起来：

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Dash_control extends CI_Controller {

    public function __construct()
       {
            parent::__construct();
            $this->load->database();
            $this->load->model('dash_model');
       }



    public function index()
    {
        $this->CashTransSum();
        $this->PayTransSum();
    }

    public function CashTransSum()
    {
        $data['cashtotal']=$this->dash_model->totalCash();
        $data['approvedcash']=$this->dash_model->cashapproved();
        $data['rejectedcash']=$this->dash_model->cashrejected();

        $this->load->view('dashboard',$data);
    }

    public function PayTransSum()
    {
        $data['paytotal']=$this->dash_model->totalPay();
        $data['approvedpay']=$this->dash_model->payapproved();
        $data['acqrejectedpay']=$this->dash_model->payrejected();

        $this->load->view('dashboard',$data);
    }

}

然后我得到了同样的错误：

Severity: Notice

Message: Undefined variable: paytotal

Filename: views/dashboard.php

Line Number: 156

Backtrace:

File: C:\xampp\htdocs\application\views\dashboard.php
Line: 156
Function: _error_handler

File: C:\xampp\htdocs\application\controllers\dash_control.php
Line: 29
Function: view

File: C:\xampp\htdocs\application\controllers\dash_control.php
Line: 17
Function: CashTransSum

File: C:\xampp\htdocs\index.php
Line: 292
Function: require_once

这里说我需要把它叫做......哪一个？我把代码错了吗？

Answer 1

您需要将anotherfunction()功能中的index称为

 public function index()
    {

        $this->anotherfunction();// call your function
    }
public function anotherfunction()
    {
        $data['cashtotal']=$this->dash_model->totalCash();
        $data['approvedtocash']=$this->dash_model->cashapproved();
        $data['rejectedtocash']=$this->dash_model->cashrejected();

        $this->load->view('dashboard',$data);
    }

Answer 2

你得到的错误，这是完全正常的，你需要用$data数组填充所有变量，试试这个：

protected $data;

public function index()
{
    $this->CashTransSum();
    $this->PayTransSum();

    $this->load->view('dashboard', $this->data);
}

public function CashTransSum()
{
    $this->data['cashtotal']=$this->dash_model->totalCash();
    $this->data['approvedcash']=$this->dash_model->cashapproved();
    $this->data['rejectedcash']=$this->dash_model->cashrejected();
}

public function PayTransSum()
{
    $this->data['paytotal']=$this->dash_model->totalPay();
    $this->data['approvedpay']=$this->dash_model->payapproved();
    $this->data['acqrejectedpay']=$this->dash_model->payrejected();
}

Codeigniter无法调用控制器内的函数

2 个答案: